The Houston East End Chamber of Commerce, the Eastwood Civic Association, and some East End residents are up in arms over Metro's plans for a light rail overpass on Harrisburg Boulevard. So what's their problem, you say? Why would anyone have anything critical to say of Metro? Yeah, Hair Balls found it hard to believe, too. In a letter last month to Metro Executive V.P. John Sedlak, Eastwood Civic Association President Bryan Vezey wrote that his association "determined that an